Synthesis and physical properties of multiferroic BaDyFeO4
Vol. 132 No. 1B (2023), Original Article
Vol. 132 No. 1B (2023)

Synthesis and physical properties of multiferroic BaDyFeO4

Original Article
https://doi.org/10.26459/hueunijns.v132i1B.6912
Published 2023-06-30
Le Thi Phuong Thao
University of Science and Education, The University of Danang, Danang, Vietnam
Danh Bich Do
Faculty of Physics, Hanoi National University of Education, Hanoi, Vietnam
Dinh Thanh Khan
University of Science and Education, The University of Danang, Danang, Vietnam
Tran Tuan Anh
Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
Le Vu Truong Son
University of Science and Education, The University of Danang, Danang, Vietnam
Dang Ngoc Toan
Institute of Research and Development, Duy Tan University, Danang, Vietnam
Nguyen Truong-Tho*
Faculty of Electronics, Electrical Engineering and Material Technology, University of Sciences, Hue University, Hue, Vietnam
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Keywords

multiferroic
synthetic procedure
crystal structure
semiconductor
DFT calculation

How to Cite

1.
Le TPT, Do DB, Dinh TK, Tran TA, Le VTS, Dang NT, Nguyen TT. Synthesis and physical properties of multiferroic BaDyFeO4. hueuni-jns [Internet]. 2023Jun.30 [cited 2024Nov.27];132(1B):65-72. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6912
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Abstract

Materials exhibiting magnetoelectric effects have drawn great interest because of their intriguing physical phenomena and potential applications in electronic devices. The magnetoelectric (ME) coupling makes the materials promising for use in multifunctional devices with electric-field-tunable magnetism and magnetic-field-controlled ferroelectricity. Very recently, a strong ME effect has been found in the BaRFeO4 system (R is a rare-earth element), in which the ferroelectricity is driven by the onset of a long-range cycloidal antiferromagnetic order of Fe spins. However, previous studies have shown how complicated the synthesis procedure is to obtain single-phase samples of the materials. In this work, we present a simple and easy fabrication process to synthesise high-quality BaDyFeO4 using the conventional solid-state reaction method. The structural, morphological, and optical properties of the synthesised sample were investigated by means of X-ray diffraction, scanning electron microscopy, and UV-Vis spectroscopy, respectively. The sample was formed from high-quality microparticles. The X-ray diffraction study reveals the single-phase nature of the sample adopting the Pnma orthorhombic structure without any impurity phases. The detailed structural parameters were refined with Rietveld refinement. The sample demonstrates a direct gap semiconducting behaviour. The experimental results of the structural and electronic properties of BaDyFeO4 are complemented by density functional theory (DFT) calculations.

https://doi.org/10.26459/hueunijns.v132i1B.6912
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